IkiWiki/Plugin/remove.pm

   1 #!/usr/bin/perl
   2 package IkiWiki::Plugin::remove;
   3
   4 use warnings;
   5 use strict;
   6 use IkiWiki 2.00;
   7
   8 sub import { #{{{
   9         hook(type => "formbuilder_setup", id => "remove", call => \&formbuilder_setup);
  10         hook(type => "formbuilder", id => "remove", call => \&formbuilder);
  11         hook(type => "sessioncgi", id => "remove", call => \&sessioncgi);
  12
  13 } # }}}
  14
  15 sub formbuilder_setup (@) { #{{{
  16         my %params=@_;
  17         my $form=$params{form};
  18         my $q=$params{cgi};
  19
  20         if (defined $form->field("do") && $form->field("do") eq "edit") {
  21                 # Removal button for the page, and also for attachments.
  22                 push @{$params{buttons}}, "Remove";
  23                 $form->tmpl_param("field-remove" => '<input name="_submit" type="submit" value="Remove Attachments" />');
  24         }
  25 } #}}}
  26
  27 sub confirmation_form ($$$) { #{{{
  28         my $q=shift;
  29         my $session=shift;
  30         my $page=shift;
  31
  32         eval q{use CGI::FormBuilder};
  33         error($@) if $@;
  34         my @fields=qw(do page);
  35         my $f = CGI::FormBuilder->new(
  36                 title => sprintf(gettext("confirm removal of %s"),
  37                         IkiWiki::pagetitle($page)),
  38                 name => "remove",
  39                 header => 0,
  40                 charset => "utf-8",
  41                 method => 'POST',
  42                 javascript => 0,
  43                 params => $q,
  44                 action => $config{cgiurl},
  45                 stylesheet => IkiWiki::baseurl()."style.css",
  46                 fields => \@fields,
  47         );
  48
  49         $f->field(name => "do", type => "hidden", value => "remove", force => 1);
  50         $f->field(name => "page", type => "hidden", value => $page, force => 1);
  51
  52         return $f, ["Remove", "Cancel"];
  53 } #}}}
  54
  55 sub formbuilder (@) { #{{{
  56         my %params=@_;
  57         my $form=$params{form};
  58
  59         if (defined $form->field("do") && $form->field("do") eq "edit") {
  60                 if ($form->submitted eq "Remove") {
  61                         my $q=$params{cgi};
  62                         my $session=$params{session};
  63
  64                         # Save current form state to allow returning to it later
  65                         # without losing any edits.
  66                         # (But don't save what button was submitted, to avoid
  67                         # looping back to here.)
  68                         # Note: "_submit" is CGI::FormBuilder internals.
  69                         $q->param(-name => "_submit", -value => "");
  70                         $session->param(postremove => scalar $q->Vars);
  71                         IkiWiki::cgi_savesession($session);
  72
  73                         # Display a small confirmation form.
  74                         my ($f, $buttons)=confirmation_form($q, $session, $form->field("page"));
  75                         IkiWiki::showform($f, $buttons, $session, $q);
  76                         exit 0;
  77                 }
  78                 elsif ($form->submitted eq "Remove Attachments") {
  79
  80                 }
  81         }
  82 } #}}}
  83
  84 sub sessioncgi ($$) { #{{{
  85         my $q=shift;
  86
  87         if ($q->param("do") eq 'remove') {
  88                 my $session=shift;
  89                 my ($form, $buttons)=confirmation_form($q, $session, $session->param("page"));
  90                 IkiWiki::decode_form_utf8($form);
  91
  92                 if ($form->submitted eq 'Cancel') {
  93                         # Load saved form state and return to edit form.
  94                         my $postremove=CGI->new($session->param("postremove"));
  95                         $session->clear("postremove");
  96                         IkiWiki::cgi_savesession($session);
  97                         IkiWiki::cgi($postremove, $session);
  98                 }
  99                 elsif ($form->submitted eq 'Remove' && $form->validate) {
 100                         my $page=$form->field("page");
 101                         my $file=$pagesources{$page};
 102
 103                         # Validate removal by checking that the page exists,
 104                         # and that the user is allowed to edit(/remove) it.
 105                         if (! exists $pagesources{$page}) {
 106                                 error(sprintf(gettext("%s does not exist"),
 107                                 htmllink("", "", $page, noimageinline => 1)));
 108                         }
 109                         IkiWiki::check_canedit($page, $q, $session);
 110
 111                         # Do removal, and update the wiki.
 112                         require IkiWiki::Render;
 113                         if ($config{rcs}) {
 114                                 IkiWiki::rcs_remove($file);
 115                                 IkiWiki::disable_commit_hook();
 116                                 IkiWiki::rcs_commit($file, gettext("removed"),
 117                                         IkiWiki::rcs_prepedit($file),
 118                                         $session->param("name"), $ENV{REMOTE_ADDR});
 119                                 IkiWiki::enable_commit_hook();
 120                                 IkiWiki::rcs_update();
 121                         }
 122                         IkiWiki::prune("$config{srcdir}/$file");
 123                         IkiWiki::refresh();
 124                         IkiWiki::saveindex();
 125
 126                         # Redirect to parent of the page.
 127                         my $parent=IkiWiki::dirname($page);
 128                         if (! exists $pagesources{$parent}) {
 129                                 $parent="index";
 130                         }
 131                         IkiWiki::redirect($q, $config{url}."/".htmlpage($parent));
 132                 }
 133                 else {
 134                         IkiWiki::showform($form, $buttons, $session, $q);
 135                 }
 136
 137                 exit 0;
 138         }
 139 }
 140
 141 1